بررسي خواص هيدروليكي بر روي آبدهي منابع آب زيرزميني دشت بم

Investigation of hydraulic properties on groundwater resources discharge of Bam plain

دشت بم در حدود 207 كيلومتري جنوب شرقي مركز استان كرمان و در حاشيه كوير لوت واقع شده كه جزء مناطق خشك كشور محسوب مي شود. در اين تحقيق كليه متغيرهاي هيدروليكي آبخوان شامل هدايت هيدروليكي(K)، ضريب آبگذري (T) و ضخامت آبخوان (b) مورد بررسي قرار گرفته شده است. با اجراي آزمايش پمپاژ در چاه هاي مشاهده اي ضريب قابليت انتقال آبخوان اندازه گيري شده و ضخامت آبخوان با روش ژئوفيزيك در جهات مختلف دشت تخمين زده شد. ميزان هدايت هيدروليكي از طريق فرمول دارسي محاسبه شده و كليه داده ها جهت پردازش به نرم افزار اكسل، سرفر و جي آي اس داده شده است. تغييرات متغيرهاي هيدروليكي، ضريب قابليت انتقال و ضخامت آبخوان بصورت نقشه هايي پهنه بندي شده و نتايج حاصله مورد تفسير قرار گرفته شده است. نتايج نشان مي دهد ميزان ضريب آبگذري در بخشهاي شرقي و جنوب شرقي دشت بيشتر از ساير قسمت هاي دشت بوده است. همچنين ميزان ضريب قابليت انتقال آبخوان از سمت شمال غربي به سمت جنوب شرقي رو به افزايش مي باشد. بطور كلي ضخامت آبخوان از سمت شمال غربي و جنوب شرقي به سمت مركزي دشت رو به افزايش است. بنابراين اگر چاه و يا قناتي جهت بهره برداري از منابع آب زيرزميني در بخش هاي شرقي و جنوب شرقي دشت حفر گردد داراي آبدهي خوبي نسبت به ساير قسمت هاي دشت خواهد بود. زيرا به دليل وجود رسوبات با نفوذپذيري بالا در بخش هاي فوق الذكر ضريب قابليت انتقال آبخوان بيشتر مي باشد.

Bam plain in Kerman province, about 207 kilometers Southeast of the center is located at edge of Lut Desert is an arid country. In this study, all the hydraulic parameters of the aquifer including hydraulic conductivity(K), transmissivity (T) and the thickness of the aquifer (b) has been studied. With the implementation of aquifer pumping test wells observational transfer coefficient is measured and the thickness of the aquifer was estimated using geophysical plain in different directions. The hydraulic conductivity calculated by the formula Darcy and all data processing software for Excel, Surfer and GIS data. Hydraulic parameters, transmissivity coefficient and the thickness of aquifer as zoning plans and results have been interpreted. The results show t Bam plain in Kerman province, about 207 kilometers Southeast of the center is located at edge of Lut Desert is an arid country. In this study, all the hydraulic parameters of the aquifer including hydraulic conductivity(K), transmissivity (T) and the thickness of the aquifer (b) has been studied. With the implementation of aquifer pumping test wells observational transfer coefficient is measured and the thickness of the aquifer was estimated using geophysical plain in different directions. The hydraulic conductivity calculated by the formula Darcy and all data processing software for Excel, Surfer and GIS data. Hydraulic parameters, transmissivity coefficient and the thickness of aquifer as zoning plans and results have been interpreted. The results show that hydraulic conductivity in parts of eastern and south-eastern lowland plains has been higher that other parts. As well as the ability to transfer coefficient of the aquifer from the northwest to southeast is rising. In general, the thickness of aquifer from the southeast to the northwest and central plains are on the rise. So if a well or aqueduct to exploit groundwater resources in eastern and southeastern plains discharge dig a well than other areas will be plain. Because due to the high permeability sediments above the aquifer transfer coefficient is higher. hat hydraulic conductivity in parts of eastern and south-eastern lowland plains has been higher that other parts. As well as the ability to transfer coefficient of the aquifer from the northwest to southeast is rising. In general, the thickness of aquifer from the southeast to the northwest and central plains are on the rise. So if a well or aqueduct to exploit groundwater resources in eastern and southeastern plains discharge dig a well than other areas will be plain. Because due to the high permeability sediments above the aquifer transfer coefficient is higher.